<html>
<head>
<base href="https://bugs.llvm.org/">
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Unqualified name use causes ambiguity through ADL (forward_as_tuple)"
href="https://bugs.llvm.org/show_bug.cgi?id=43764">43764</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Unqualified name use causes ambiguity through ADL (forward_as_tuple)
</td>
</tr>
<tr>
<th>Product</th>
<td>libc++
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>All
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>All Bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>marcin.zalewski@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org, mclow.lists@gmail.com
</td>
</tr></table>
<p>
<div>
<pre>I have a library that redefines forward_as_tuple in its namespace, along with
some concrete types. This causes the problem with the following code:
<a href="https://github.com/llvm/llvm-project/blob/master/libcxx/include/tuple#L1352">https://github.com/llvm/llvm-project/blob/master/libcxx/include/tuple#L1352</a>
<a href="https://github.com/llvm/llvm-project/blob/master/libcxx/include/tuple#L1367">https://github.com/llvm/llvm-project/blob/master/libcxx/include/tuple#L1367</a>
Here, forward_as_tuple is being called unqualified, and ADL kicks in. ADL finds
the definition of forward_as_tuple in the library that I am using, and I get
ambiguity.</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are on the CC list for the bug.</li>
</ul>
</body>
</html>